121232152 has 16 divisors (see below), whose sum is σ = 229655160. Its totient is φ = 59990784.

The previous prime is 121232143. The next prime is 121232159. The reversal of 121232152 is 251232121.

It is a super-2 number, since 2×121232152² = 29394469357102208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121232159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77338 + ... + 78889.

Almost surely, 2^121232152 is an apocalyptic number.

It is an amenable number.

121232152 is a deficient number, since it is larger than the sum of its proper divisors (108423008).

121232152 is a wasteful number, since it uses less digits than its factorization.

121232152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156330 (or 156326 counting only the distinct ones).

The product of its digits is 240, while the sum is 19.

The square root of 121232152 is about 11010.5473070143. The cubic root of 121232152 is about 494.9248629279.

Adding to 121232152 its reverse (251232121), we get a palindrome (372464273).

The spelling of 121232152 in words is "one hundred twenty-one million, two hundred thirty-two thousand, one hundred fifty-two".